<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no">
    <meta name="description" content="A sample BIM dataset rendered with 3D Tiles.">
    <meta name="cesium-sandcastle-labels" content="Showcases, 3D Tiles">
    <title>Cesium Demo</title>
    <script type="text/javascript" src="../Sandcastle-header.js"></script>
    <script type="text/javascript" src="../../../Build/CesiumUnminified/Cesium.js" nomodule></script>
    <script type="module" src="../load-cesium-es6.js"></script>
</head>
<body class="sandcastle-loading" data-sandcastle-bucket="bucket-requirejs.html">
<style>
    @import url(../templates/bucket.css);
</style>
<div id="cesiumContainer" class="fullSize"></div>
<div id="loadingOverlay"><h1>Loading...</h1></div>
<div id="toolbar"></div>
<script id="cesium_sandcastle_script">
function startup(Cesium) {
    'use strict';
//Sandcastle_Begin
// Power Plant design model provided by Bentley Systems
var viewer = new Cesium.Viewer('cesiumContainer');
var scene = viewer.scene;

var tileset = scene.primitives.add(
    new Cesium.Cesium3DTileset({
        url: Cesium.IonResource.fromAssetId(8564)
    })
);

tileset.readyPromise.then(function(tileset) {
    viewer.zoomTo(tileset, new Cesium.HeadingPitchRange(0.5, -0.2, tileset.boundingSphere.radius * 4.0));
}).otherwise(function(error) {
    console.log(error);
});

tileset.colorBlendMode = Cesium.Cesium3DTileColorBlendMode.REPLACE;

var selectedFeature;
var picking = false;

Sandcastle.addToggleButton('Per-feature selection', false, function(checked) {
    picking = checked;
    if (!picking) {
        unselectFeature(selectedFeature);
    }
});

function selectFeature(feature) {
    var element = feature.getProperty('element');
    setElementColor(element, Cesium.Color.YELLOW);
    selectedFeature = feature;
}

function unselectFeature(feature) {
    if (!Cesium.defined(feature)) {
        return;
    }
    var element = feature.getProperty('element');
    setElementColor(element, Cesium.Color.WHITE);
    if (feature === selectedFeature) {
        selectedFeature = undefined;
    }
}

var handler = new Cesium.ScreenSpaceEventHandler(scene.canvas);
handler.setInputAction(function(movement) {
    if (!picking) {
        return;
    }

    var feature = scene.pick(movement.endPosition);

    unselectFeature(selectedFeature);

    if (feature instanceof Cesium.Cesium3DTileFeature) {
        selectFeature(feature);
    }
}, Cesium.ScreenSpaceEventType.MOUSE_MOVE);

// In this tileset every feature has an "element" property which is a global ID.
// This property is used to associate features across different tiles and LODs.
// Workaround until 3D Tiles has the concept of global batch ids: https://github.com/AnalyticalGraphicsInc/3d-tiles/issues/265
var elementMap = {}; // Build a map of elements to features.
var hiddenElements = [112001, 113180, 131136, 113167, 71309, 109652, 111178, 113156, 113170, 124846, 114076, 131122, 113179, 114325, 131134, 113164, 113153, 113179, 109656, 114095, 114093, 39225, 39267, 113149, 113071, 112003, 39229, 113160, 39227, 39234, 113985, 39230, 112004, 39223];

function getElement(feature) {
    return parseInt(feature.getProperty('element'), 10);
}

function setElementColor(element, color) {
    var featuresToColor = elementMap[element];
    var length = featuresToColor.length;
    for (var i = 0; i < length; ++i) {
        var feature = featuresToColor[i];
        feature.color = Cesium.Color.clone(color, feature.color);
    }
}

function unloadFeature(feature) {
    unselectFeature(feature);
    var element = getElement(feature);
    var features = elementMap[element];
    var index = features.indexOf(feature);
    if (index > -1) {
        features.splice(index, 1);
    }
}

function loadFeature(feature) {
    var element = getElement(feature);
    var features = elementMap[element];
    if (!Cesium.defined(features)) {
        features = [];
        elementMap[element] = features;
    }
    features.push(feature);

    if (hiddenElements.indexOf(element) > -1) {
        feature.show = false;
    }
}

function processContentFeatures(content, callback) {
    var featuresLength = content.featuresLength;
    for (var i = 0; i < featuresLength; ++i) {
        var feature = content.getFeature(i);
        callback(feature);
    }
}

function processTileFeatures(tile, callback) {
    var content = tile.content;
    var innerContents = content.innerContents;
    if (Cesium.defined(innerContents)) {
        var length = innerContents.length;
        for (var i = 0; i < length; ++i) {
            processContentFeatures(innerContents[i], callback);
        }
    } else {
        processContentFeatures(content, callback);
    }
}

tileset.tileLoad.addEventListener(function(tile) {
    processTileFeatures(tile, loadFeature);
});

tileset.tileUnload.addEventListener(function(tile) {
    processTileFeatures(tile, unloadFeature);
});
//Sandcastle_End
    Sandcastle.finishedLoading();
}
if (typeof Cesium !== 'undefined') {
    window.startupCalled = true;
    startup(Cesium);
}
</script>
</body>
</html>
